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monitor: Provide empty command as final history entry (Jan Kiszka)

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Provide an empty line as last entry in command line history, just like
bash e.g. does.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6842 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-03-13 15:02:28 +00:00
parent a770dc7ea6
commit 5b0d272717
1 changed files with 5 additions and 3 deletions
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8
readline.c
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@ -196,12 +196,14 @@ static void readline_up_char(ReadLineState *rs)
static void readline_down_char(ReadLineState *rs)
{
if (rs->hist_entry == READLINE_MAX_CMDS - 1 || rs->hist_entry == -1)
return;
if (rs->history[++rs->hist_entry] != NULL) {
if (rs->hist_entry == -1)
return;
if (rs->hist_entry < READLINE_MAX_CMDS - 1 &&
rs->history[++rs->hist_entry] != NULL) {
pstrcpy(rs->cmd_buf, sizeof(rs->cmd_buf),
rs->history[rs->hist_entry]);
} else {
rs->cmd_buf[0] = 0;
rs->hist_entry = -1;
}
rs->cmd_buf_index = rs->cmd_buf_size = strlen(rs->cmd_buf);